SplatCalendar.py

#!/usr/bin/env python
# coding: utf-8
import time
from typing import Optional

HOLIDAYS = [
    {
        'month': 'Gvrier',
        'day': 1,
        'cause': 'Le Splat'
    },
    {
        'month': 'Gevrier',
        'day': 1,
        'cause': 'Hell-a-J'
    },
    {
        'month': 'Gevrier',
        'day': 1,
        'cause': 'Hell-a-J'
    }
]


class SplatDate:
    """Classe qui convertit une date classique en date splatonique"""

    def __init__(self, year, month, day):
        self.year = year - 2017
        if month == 3:
            if day >= 27:
                self.month = 'Givier'
                self.day = day - 27 + 1
        if month == 4:
            if day < 29:
                self.month = 'Givier'
                self.day = day + 5
            else:
                self.month = 'Fevrilyo'
                self.day = day - 29 + 1
        if month == 5:
            if day < 14:
                self.month = 'Fevrilyo'
                self.day = day + 2
            else:
                self.month = 'Maikkar'
                self.day = day - 15 + 1
        if month == 6:
            if day < 23:
                self.month = 'Markkos'
                self.day = day + 18 - 1
            else:
                self.month = 'Avrylocus'
                self.day = day - 24

    def formatted_date(self) -> str:
        suffix = "er" if self.day == 1 else ""
        return "{day}{suffix} {month} de l'an {year}".format(day=self.day, suffix=suffix, month=self.month,
                                                             year=self.year)

    @staticmethod
    def seconds_since_splat() -> float:
        t = (2017, 3, 27, 0, 0, 0, 1, 76, 1)
        return time.mktime(time.localtime()) - time.mktime(t)


def today_holiday_cause() -> Optional[str]:
    year, month, day, *_ = time.localtime()
    today_splat_date = SplatDate(year, month, day)
    matching_holiday = list(
        filter(lambda holiday: holiday['day'] == today_splat_date.day and holiday['month'] == today_splat_date.month,
               HOLIDAYS))
    if matching_holiday and len(matching_holiday) == 1:
        return matching_holiday[0]['cause']
    else:
        return None